97566445 has 8 divisors (see below), whose sum is σ = 118154520. Its totient is φ = 77336640.

The previous prime is 97566409. The next prime is 97566449. The reversal of 97566445 is 54466579.

It can be written as a sum of positive squares in 4 ways, for example, as 7733961 + 89832484 = 2781^2 + 9478^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 97566445 - 2¹⁵ = 97533677 is a prime.

It is a super-2 number, since 2×97566445² = 19038422379876050, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 97566395 and 97566404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97566449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88966 + ... + 90055.

It is an arithmetic number, because the mean of its divisors is an integer number (14769315).

Almost surely, 2^97566445 is an apocalyptic number.

It is an amenable number.

97566445 is a deficient number, since it is larger than the sum of its proper divisors (20588075).

97566445 is a wasteful number, since it uses less digits than its factorization.

97566445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179135.

The product of its digits is 907200, while the sum is 46.

The square root of 97566445 is about 9877.5728293949. The cubic root of 97566445 is about 460.3627337393.

The spelling of 97566445 in words is "ninety-seven million, five hundred sixty-six thousand, four hundred forty-five".